Yet years later GMG still aren't selling any Al batteries.
Of course there are plenty of potentially game-changing techs in the works, it's a very competitive field with huge stakes.
It's like solid state batteries that have been at the industrial development stages for close to 15 years.
Companies, starting with Toyota, have been pouring billions into this.
Someday, something great will come out of this, and someone will make good money out of it. Don't hold your breath though, technological breakthrough don't tend to come attached to a schedule.
For now getting really close to 300 Wh/kg for EV cells is great, doubling that is not happening tomorrow.